Henan Normal University

TL;DR: An unprecedented Rh(III)-catalyzed double C(sp2)-H bond carbenoid insertion and annulation of 2-aryl-3-cyanopyridines with α-diazo carbonyl compounds is presented and is a more efficient, convenient, and atom-economic way to provide polycyclic heteroaromatic compounds through direct π-extension of simple aromatics via inert C-H bond activation and functionalization.

TL;DR: Cd exposure may impact the gut homeostasis of common carp and further affect the health of the organism, and it is demonstrated that Cd exposure decreased the community diversity of the gut microbiota.

TL;DR: In this article, a mechanically flexible graphene aerogel (GA) was synthesized by vacuum freeze-drying of their hydrogel precursors obtained from heating the aqueous mixtures of graphene oxide (GO) and Vitamin C (VC) without stirring.

TL;DR: In this article, a comprehensive atmospheric emission inventory of 9 typical toxic heavy metals (THMs), e.g., mercury (Hg), arsenic (As), lead (Pb), cadmium (Cd), chromium (Cr), selenium (Se), copper (Cu), zinc (Zn), and nickel (Ni), from open MSW burning activities in China was established during the period of 2000-2013 for the first time.

TL;DR: Purine is utilized as a new directing group for the Pd-catalyzed monoarylation of 6-arylpurines with simple aryl iodides via C-H bond activation in good yields, providing a complementary tool for the modification of6- Darylpurines (nucleosides).